Japan: Fukushima workers urged to hide radiation levels, says report

The Japanese government is investigating reports that workers at the Fukushima nuclear plant were urged to hide their exposure to radiation.

A boy holds a banner denouncing nuclear power plants during a protest in front of the official residence of Japanese Prime Minister Yoshihiko Noda in Tokyo on July 20, 2012. (AFP/AFP/Getty Images)

Japan's Ministry of Health, Labor and Welfare is investigating a report that workers at the nuclear plant in Fukushima were urged to cover up unsafe radiation levels, CNN reported.

Workers for a subcontractor working at the Fukushima Daiichi nuclear plant were allegedly told to use lead covers to hide radiation levels on December 1, nine months after the earthquake and tsunami damaged the plant, CNN said.

A ministry official said, "We'll firmly deal with the matter once the practice is confirmed to constitute a violation of any law."

Agence France Presse said an executive at Build-Up, a construction firm, told around 10 workers to cover their dosimeters – devices used to measure radiation exposure – so the firm could continue to work at the site.

In a recording the workers had of their meeting with the executive, he said, "Unless we hide it with lead, exposure will max out and we cannot work," according to Japanese daily Asahi Shimbun, said AFP.

According to Japanese public broadcaster NHK, nine workers wore the lead plates over their devices, said Reuters.

Japanese law sets the annual radiation exposure threshold at 50 millisieverts for nuclear plant workers during normal conditions, according to Reuters.